Motor mounting



Feb. 15,192. 1,617,837

w. ERNST MOTOR uouuwiua Filed May 5, 1926 INVENTOR.

ORNEYJ.

Patented Feb. 15, 1927.

WILLIAM EnNsT, or 'RACTNE, wIsCoNsIN, AssIGNCR To IIAIIIILTON BEACH MFG.00.,

or RACINE, WISCONSIN, A CORPORATION or wIsCoNsIN.

Moron MOUNTING.

Application flea-na '5, I926. 's'eiiaiNo. 106,977.

This invention relates to improvements in motor mountings,particularlyadapted for the attachment of flat type electric motors tosewing machine heads.

Iti's on'eof the objects of'the present invention to provide a motormounting wherebyan electric motor is yieldingly secured to the head of asewingmachine'with its pulley wheel in frictional engagement with thesewing machine hand wheel to propel the same. 7 p p I A further objectof the invention is to provide aspring actuated motor mounting of theclass described arranged so that the" mountin and motor may heflexedaway from the hand wheel to disengage the motor pulley wheeltherefrom;

A further object of the invention is to provide a-motormounting of theclassdescrib'ed constructedso that-"it may be yieldingly locked in anyflexed position.

A further object of the invention is to providea motor mounting of theclass described in which the tightness of the engagement between themotor pulley wheel and the hand wheel may be readily manually adjusted.

A further object of the invention is to provide a motor mounting forsewing machine heads which is of very simple con struction, is strongand durable, is inexpensive to manufacture, is easily installed, andwell adapted for the purposes described.

With the above and other objects in View the invention consists of theimproved motor mounting for sewing machine heads, and its parts andcombinations as set forth in the claims and all equivalents thereof.

In the accompanying drawing in whlch the same reference charactersindicate the same parts in all of the views:

Fig. 1 is an end view of a sewing machine head provided with theimproved motor mounting and motor carried thereby, part being brokenaway and shown in section;

Fig. 2 is a side viewof the head showing the mounting and motor; and

Fig. 3 is a fragmentary view similar to Fig. 1 showing details ofconstruction.

Referring now more particularly to the drawing it will appear that thenumeral 5 indicates the head portion of a sewing machine carrying arevoluble hand wheel 6.

Secured to the lower flanged portion 7 of the side of the head is a fiatspring steel bracket 8,]s'haped as showiiin Fig. 2. A

fiat type electric motor 9 is fastenedto the which the shank portion ofan adjusting The end portion of the screw 13 extends. V screw 1sthreaded and enters an Internally threaded bore 14 formed in the head.Coiled about tlie'shank of the screw is a spring and the same isconfined'between thescrew head and the outer surface ofthe'bracketl' Thenatural tendency f the spring bracket member is'to flex away from sew;

ing machine head and when it is desired" to '(lisenga'ge the motorpulleywheel from the machinehand wheel it is only necessary to unthread thescrew 13 a requisite'an'lount and the bracket member will flexoutwardly, as shown in Flg. 3. The provision of the vertical slot 12inthe upper portion of the bracket permits the bracket to move on thescrew shank withoutbinding. Also, when the bracket is adjusted so thatthe motor is in normal engaging position, the coiled spring 15 allows itto yield slightly to com pensate for irregularities in the rotation ofthe hand wheel.

From. the foregoing description it will be seen that the improvedmotormounting for sewing machine heads is of very simple and novelconstruction, and is well adapted for the purposes set forth.

What is claimed as the invention is:

1. The combination with a sewing machine head having a hand wheel, of amotor mounting, comprising a yieldable member attached at an upper pointand at a lower point to said head, and a motor carried by said yieldablemember and normally maintained thereby in engagement. with said handwheel. 1

or 2. The combination with a sewing mabracl're't member chine headhaving a hand wheel, of a motor mounting, comprising a yieldable memberrigidly secured at one portion to the head and laterally movablyadjustably'secured at another portion to said head,,and a motor carriedby said yieldable member and normally maintained thereby in removable engagement with said hand wheel. 1

3. The combination with a sewing machine head having a hand wheel, of amotor mounting, comprising an elongated spring plate member rigidlysecured at one end portion tothe head and laterally movably adjustablysecured atthe other end portion to said head, and a motor carried bysaid spring plate member and normally maintained thereby in ren'iovahleengagement with said hand wheel.

4. The combination with a sewing machine head having a hand wheel, of amotor "iounting, comprising an elongated verticai spring plate memberrigidly secured at its lower end portion to the head and laterally'movably' adjustably secured at its upper end portion to the head, and amotor carried by an intermediate portion of the spring plate member andnormally maintained thereby in removable engagement withsaid hand wheel.

5. A mot-or mounting for sewing machine heads, con'iprising a springablemotor carrying bracket member attachable to a sewing machine head, andmeans carried by the bracket member and engageable with the head foradjusting the amount of spring movement of the bracket member withrespect to the head.

6. In combination, a sewing machine head revolubly carryinga hand wheel,anelongated fiat spring steel bracket member secured at its lower endportion to the side of said head and extending upwardiy vertically, anelectric motor secured to the medial portion of the bracket member, thepulley wheel of the same being adapted for trictional engagement withsaid hand wheel, the upper portion of the bracket member being formedwith a vertical slot, an adjusting screw extending through said slot andentering the head, and a spring coiled about said screw and confinedbetween the bracket member and the head of the screw.

7. The combination with a sewing machine head having a hand wheel, of amotor mounting, comprising a yieldable member rigidiy secured at oneportion to said head and yieldingly secured at another portion to saidhead, and a motor carried by said yieldable member and normallymaintained thereby in engagement with said hand wheel.

8. The combination with a sewing machine head having a hand wheel, of amotor mounting, comprising a yieldahle member rigidly secured at itslower end portion to said head and yieldingly secured at its upper endportion to said head, and a motor carried by said yieldable member andnormally maintained thereby in engagement with said hand wheel. I

In testimony whereof, I afiix my signature.

WILLIAM Elias-5;

